(541132) Leleākūhonua
Asteroid (541132) Leleākūhonua |
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Schematic representation of the orbit compared to Sedna | |
Properties of the orbit ( animation ) | |
Orbit type | TNO |
Major semi-axis | approx. 1100 AU |
eccentricity | 0.94 |
Perihelion - aphelion | 65 AU - approx. 2000 AU |
Inclination of the orbit plane | 11.66 ° |
Sidereal period | approx. 34,000 a |
Physical Properties | |
Medium diameter | 300 km |
Absolute brightness | 5.3 mag |
history | |
Explorer | Mauna Kea-UH / Tholen NEO Follow-Up (Subaru) |
Date of discovery | October 13, 2015 |
Another name | (541132) 2015 TG 387 |
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. |
(541132) Leleākūhonua , provisional name (541132) 2015 TG 387 , is a planetoid that was discovered on October 13, 2015 at Mauna Kea-UH / Tholen NEO Follow-Up (Subaru) and belongs to the group of trans-Neptunian objects . The asteroid orbit the sun in a highly eccentric orbit with an orbital period of a few tens of thousands of years. The eccentricity of its orbit is 0.94, with this 11.66 ° inclined to the ecliptic . With an absolute brightness of 5.3 mag, it is just a candidate for dwarf planets . He also had the unofficial nickname "The Goblin" for TG.
Its discovery was published on October 1, 2018, and it was numbered on October 10, 2019.
The name was given in June 2020. Leleākūhonua is a form of life that occurs in Kumulipo , a Hawaiian song of creation. The name compares the highly eccentric orbit with the flight of migratory birds and evokes a longing for proximity to the earth.
object |
q (AU) |
a (AU) |
T ( a ) |
e |
i (°) |
ω (°) |
H (likes) |
---|---|---|---|---|---|---|---|
2012 VP 113 | 80.39 | 258.27 | 4.151 | 0.69 | 24.1 | 293.5 | 4.0 |
(90377) Sedna | 76.26 | 484.52 | 10,665 | 0.84 | 11.9 | 311.4 | 1.3 |
(541132) Leleākūhonua | 65.04 | 1031.49 | 33,128 | 0.94 | 11.7 | 118.0 | 5.5 |
2014 FZ 71 | 55.88 | 75.76 | 659 | 0.26 | 25.5 | 244.5 | 6.9 |
2015 RG 301 | 52.05 | 54.04 | 397 | 0.04 | 10.2 | 287.4 | 8.2 |
2014 FC 72 | 51.66 | 75.75 | 659 | 0.32 | 29.9 | 33.3 | 4.7 |
2018 GT 15 | 51.54 | 57.58 | 437 | 0.10 | 26.0 | 357.3 | 7.5 |
2004 XR 190 | 51.11 | 57.26 | 433 | 0.11 | 46.8 | 285.6 | 4.3 |
2015 FJ 345 | 50.69 | 62.88 | 499 | 0.19 | 35.0 | 77.4 | 7.9 |
2014 ST 373 | 50.19 | 104.56 | 1,069 | 0.52 | 43.2 | 297.1 | 5.4 |
2013 SY 99 | 50.02 | 693.86 | 18,277 | 0.93 | 4.2 | 32.1 | 6.7 |
2015 KQ 174 | 49.31 | 55.40 | 412 | 0.11 | 24.3 | 294.0 | 7.3 |
2010 GB 174 | 48.75 | 350.59 | 6,565 | 0.86 | 21.6 | 347.4 | 6.5 |
2014 SR 349 | 47.69 | 302.23 | 5,254 | 0.84 | 18.0 | 340.9 | 6.7 |
(474640) 2004 VN 112 | 47.30 | 318.97 | 5,697 | 0.85 | 25.6 | 326.8 | 6.5 |
Web links
- Jan Dönges: Extremely distant minor planet discovered at Spectrum of Science on October 2, 2018
Individual evidence
- ↑ Minor Planet Center: MPC Database Search for 2015 TG387. October 13, 2015 ( minorplanetcenter.net ).
- ^ Scott Sheppard, Chadwick Trujillo, David Tholen, Nathan Kaib: A New High Perihelion Inner Oort Cloud Object. 2018, arxiv : 1810.00013 .
- ↑ List of objects with q> 47. Minor Planet Center (MPC) of the International Astronomical Union (IAU), accessed on June 13, 2020 .
- ↑ Chadwick A. Trujillo, Michael E. Brown: The Radial Distribution of the Kuiper Belt . In: The Astrophysical Journal Letters . Vol. 554, No. 1 , May 31, 2001, p. L95 , doi : 10.1086 / 320917 , bibcode : 2001ApJ ... 554L..95T (English).